Anyway. Burton and Swinburne.is like most steampunk series' in that it's a alternate history set in the Victorian era, but unique in that the alternate timeline itself plays a huge role in the story. There is a specific point where an aberration in time occurred, creating a steampunk world that shouldn't exist. Each novel has its own self-contained story, but all of them contribute to a larger story about the warping and altering of time. This is all managed without bogging the books down with too much theory or exposition, so even if you're not acquainted with these sort of ideas, it's easy to find your way.
I don't know how much more I can say without spoiling any of the previous books, but several subplots come to heart-wrenching conclusions, and I can't wait to get book four just to find out where the characters can possibly go from here. It's something Hodder does that a lot of series' authors can't: make you legitimately concerned over the fates of his main characters. Usually there's a sense of security around ongoing series' protagonists such that, no matter what situation the author puts them in, you as a reader know they're going to be okay. The final book is one thing, but if there's another book ahead you can be sure the main guys are going to make it. Hodder managed to make me forget that on several occasions this time around.
It's especially difficult to bring suspense to a novel involving time travel, since there's the possibility of everything that's happened so far being undone, making any attempt at peril fall flat. Expedition teeters on this line a bit, but thankfully stops short of rendering the whole plot useless. I'll end by saying again that this is book three in an ongoing series that starts with The Strange Affair of Spring Heeled Jack, followed by The Curious Case of the Clockwork Man, then Expedition to the Mountains of the Moon. All good stuff. Great, even.
Title: Expedition to the Mountains of the Moon
Published: 2012, Snowbooks Ltd.
Pages: 645, 668 with notes on the real people and events references throughout the book
Would Recommend: Yes, to anyone interested in steampunk that amounts to something more than just backdrop, or someone unfamiliar with the whole genre looking for an easy in.